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UG LAND INDIA

MQ-7 Gas Sensor Module For Carbon Monoxide Detector Module

MQ-7 Gas Sensor Module For Carbon Monoxide Detector Module

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  • 10 Days Returnable
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Specification:

Model  MQ7
Gas Sensibility  Carbon Monoxide
Operating voltage 5V (DC)
Range 10 ~ 1000 ppm
Return time ≤ 30 sec
Heating resistance ± 31 Ω
Sensitivity ≥ 3%.
Charachteristic Gas  100 ppm CO
Dimension  3.5 x 2 x 1.1cms 
Weight  5 grams

 

Features:

  • Target Gas:
    Detects Carbon Monoxide (CO) in the air.

  • High Sensitivity & Selectivity:
    Very sensitive to CO, with minimal interference from alcohol, smoke, and other gases.

  • Dual Heater Cycle Operation:
    Utilizes a two-phase heating cycle (high-temp cleaning and low-temp sensing) for better CO selectivity.

  • Detection Range:
    ~10 to 1000 ppm of CO gas.

  • Fast Response & Recovery Time:
    Responds quickly to gas presence and clears fast after gas removal.

  • Analog & Digital Output:

    • Analog Output (AO): Proportional to gas concentration.

    • Digital Output (DO): Activated when CO level exceeds a set threshold (adjustable via potentiometer).

  • Onboard Potentiometer:
    For setting the CO concentration threshold level for digital output.

  • Power Supply:
    Operates at 5V DC.

  • Preheat Time:
    Requires approximately 60 seconds warm-up after power-on for stable readings.

  • LED Indicators:
    Built-in power and signal LEDs for visual status monitoring.

  • Compatibility:
    Easily interfaces with microcontrollers like ESP32, Pi, and more.

Description:

The MQ-7 gas sensor module is a device that can detect the presence of carbon monoxide (CO) gas in the air. It is commonly used in applications such as gas leak detectors, safety devices, and industrial control systems. The MQ-7 sensor operates by using a chemical reaction between the CO gas and a conductive metal oxide to produce a current. The magnitude of the current is proportional to the concentration of CO gas in the air. The gas sensor can be used to detect CO gas concentrations in the range of 20-2000 ppm. It is important to note that CO is a poisonous gas that can be dangerous at high concentrations. It is recommended to use the MQ-7 sensor with caution and to take appropriate safety measures when working with it.

This module provides both digital and analog outputs. The threshold level for digital output can be easily adjusted using the preset on the board. The MQ-7 sensor module can be easily interfaced with microcontrollers,and etc.

Read our blog MQ sensor where we explained what is a gas sensor, what is 1ppm equal to, MQ sensor list of different series and their features.

Shipping & Returns

Return Policy According

• Order can be return within 10 days from date of delivery.

• Order return request cannot be accepted after 10 days from date of delivery.
• Return request window are available for only 10 days.
• After 10 days return window will closed and we cannot accepted any request.
• Customer will sent the order to seller by any courier.
• Customer will paid own of courier charges to seller warehouse.
             

Generate (RMT) Return Merchant Ticket

• Note : Take photo and upload. Condition of product. Enter Correct Name, Mobile, Email, Order id / Invoice number (any one ) you can enter. Select Payment mode

Cash On Delivery / Prepaid .
• After Submit Return Request within 12 - 24 hour receive (RMT) Return Merchant Ticket number to your registered mobile number and email id.
• When you receive (RMT) Return Merchant Ticket number then ship your return to our warehouse address by any courier.
• We will initiate refund after delivered your return order to our warehouse.
• For any query please call our helpline number +91-9999115521 or
  mail us support@uglandindia.com

Refund policy

Prepaid Customer

• Refund of the order will be initiated after receiving the product at the warehouse address

• You will receive a notification message or mail for confirmation, of receiving the product.

• Full order value amount will transfer to your bank account. Money will be credited 5-7 working days.
• Money will issue same day when confirmation will receive by message and mail.
• Refund will not issued if product is not the same as which orders are sent by us.
• We can provide reverse amount in the DISCOUNT coupon if the buyer wants and can apply coupon to purchase another or the same product. Money will deduct.
• Coupon validity available for 1 year.
• If return request receive after 10 days from the date of delivery. we will not issue refund.
 
Deduct Non Refundable Charges
• Refund money reverse to you only product amount and delivery charges
• Delivery charges will not refund in case order refuse delivery to accept order / Incorrect address mentioned
Order Cancellation Charges
Order cancellation charges will be deduct if in case your order is Picked up or handover to the courier department. Delivery charges will deduct.
Refund will reverse only product amount.

For any query, please Call/WhatsApp to our helpline number +91-9999115521/+91-9999115512

Any complaint or query also technical support mail us support@uglandindia.com
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